#!bin/bash


s1_hello(){
   echo "hello, world!"
}


s2_tell_who_i_am(){
   echo "$(whoami)"
}


s3_which_distro_do_i_use(){
   cat /etc/*-release | grep "^NAME"
}


s4_view_my_cpu_arch(){
   uname -m
}


s5_show_first_scsi_disk_size(){
   lsblk -l | \grep disk | \grep '^sda' | \awk '{print $4}' |tr -d 'G'
}


s6_show_main_memory_size_in_megabytes(){
   free -m | grep "Mem:" | awk '{print $2}'
}
